They are slow colonizers, at least in my garden. They don't begrudge any other wildflower that wished to grow with them either. I don't think you will be disappointed if you leave this loner. They are so cheerful in the early spring. Popping up to see what the world will offer them. Then of course they offer the fairies some beautiful green umbrellas and a lovely little flowers they can see.

Not only are they pretty and hardy but the females have fruit which you can harvest and make jam out of. But of course you will definitely need a grove, colony, field, whatever of them to make very much jam.

I'm with Irwin. It will be happier than you think. I would not get rid of it, but I would move it away from anything slower growing. Spoken by someone who had to dig up a trillium to remove all the mayapple roots entwined around it. The mayapple was winning.

I say leave it. You've seen the size of my garden, and I wouldn't want to be without mayapples. They are a delight of spring. That said, I do have to dig up copious amounts of them every year as they spread into the path. I have them segregated from less thuggish things by a dry creek and a path.